On 12/15/20 7:26 AM, Marc Zyngier wrote: > On 2020-12-15 15:21, Guenter Roeck wrote: >> Hi Marc, >> >> On 12/15/20 2:19 AM, Marc Zyngier wrote: >>> Hi Gunter, >>> >>> On 2020-12-15 00:21, Guenter Roeck wrote: >>>> On Mon, Nov 09, 2020 at 09:41:19AM +0000, Valentin Schneider wrote: >>>>> As done for the Arm GIC irqchips, move IPIs to handle_percpu_devid_irq() >>>>> as >>>>> handle_percpu_devid_fasteoi_ipi() isn't actually required. >>>>> >>>>> Signed-off-by: Valentin Schneider <valentin.schnei...@arm.com> >>>> >>>> This patch results in boot failures (silent stall) for the qemu >>>> raspi2 emulation. Unfortunately it can not be reverted because >>>> handle_percpu_devid_fasteoi_ipi no longer exists in next-20201214, >>>> so I don't know if it is the only problem. >>> >>> This is odd. This works just fine for me on both the RPi2 and 3 >>> emulation, running a full Debian userspace. Could this be caused >>> by the version of QEMU you are using? Here's what I have: >>> >>> $ qemu-system-arm --version >>> QEMU emulator version 5.1.0 (Debian 1:5.1+dfsg-4+b1) >>> >> >> I used qemu 5.0 which - up to now - worked fine. Let me try with >> 5.1 and 5.2. Sorry, I should have tried first before bothering you. > > No bother at all. If this works for you on more recent versions of > QEMU, that'd be an interesting data point. I'm also interested in > the result of the patch either way. >
It doesn't work for me with qemu 5.1, nor with qemu 5.2. My userspace is generated with buildroot, busybox-based, and very basic. Your patch fixes the problem for me, though, so feel free to add Tested-by: Guenter Roeck <li...@roeck-us.net> if/when you submit it. Thanks, Guenter
